Dredging-machine.



'No. 650,I5 7. Patented May 22, 1900. A. N. mamas-8L w. A. OLSEN.

nn'znsme MACHINE.-

V (Application filed Dec; 23, 1889. (No Model.) V 2 Sheets-Sheet l.

WITNESSES INVENTOH-S' ed tg; h r I No. 65o,|57. Pafented May 22, moo.

' A. mamas aw. A1. OLSEN.

nnz'u'ema MACHINE. (Application filed Dec. 23,. 1899.)

' 2 Sheets-y-Shaet 2.

(Nb Model.)

m 'l "Hui.

NVENEOF IS WITNESSES 6 B) an A 77'OHNEY UNITED STATES PATENT OFFICE.

ANDRE N. REIMER AND WILLIAM A. OLSEN, OF NEW YORK, 'N. Y.

DREDGING-MACHIN'E.

SPECIFICATION forming part of Letters Patent 1%. 650,157, dated Ma 2a, 1906.

Application filed December 23,1899. Serial No. 741,421. (No model.)

To all whom it may concern.

Be it known that we, ANDREW N. REIMER and WILLIAM A. OLSEN, citizens of the United States of America, and residents of New York city, county and State of New York, have invented certain new and useful Improvements inDredging-Machines, of which the following is a specification.

Our invention comprises improvements in apparatus for operating the scoop of a dredging-machine, whereby it is designed to provide simpler and more efficient apparatus for the purpose, as hereinafter described, reference being made to the accompanying drawings, in which- Figure 1 is a side elevation of part of our improved dredging=machine. Fig. 2 is a plan view of the under side of the bottom of the bucket with a part broken out. Fig. 3 is a longitudinal sectional elevation of part of the scow with the scoop operating apparatus mainly in side View. Fig. 4c is a transverse section on line 00 as of Fig. 1. Fig. 5 is a transverse section on line y y, Fig. 1. Fig. 6 is a plan view of the scoop-carrying truck. Fig. 7 is a front elevation of the pulley by which the hoisting-rope is connected with the scoop.

We provide a scow a with an opening b through the deck and the bottom near the bow or otherwise adapt it so that the scoop 0 may pass up and down, within which opening is mounted a stationary boom comprising a pair of rails e, rising upwardly and forwardly from the deck and reaching to a point over and a little beyond the end of the scow, said rails being attached for support at their lower portions to the scow in any approved way and duly supported near their upper ends by posts f. At the'upper ends they are connected together by a bar g for rigidity. A truck h, having grooved wheels 11, is provided to run up and down these rails and along rails j, ex-

tending along the deck a short distance from rails e at their junction with the deck.

From the aft end of the truck the scoopoperating rope 7c is suspended, being attached to axle Z, but may be attached in any approved way. Said rope after passing through a pulley m on the bail n of the scoop passes over a pulley 0 on aXle p of the truck, under a guide-pulley q, thence over a pulley s at the upper ends of the rails, and thence to a drum :5 for operating it, said drum being understood to have power applied to it for work ing it either way at will for raising and lowering the scoop.

The truck it carries a pair of hooks to, pivoted to its sides, respectively, and its sides are notched at U in such relation to the hooks to and to the guide-pulley 0, over which the scoop-operating rope k works, that when the scoop is drawn upward in the first part of the hoisting operation projecting studs w of the pulley-block on will lodge in said notches, and the truck will then begin to run up the rails 6, being forced along by the hoisting-rope k. The hooks a have rearwardly-projecting and upwardly-curved weighted arms so, which when the truck is in the position represented in Fig. 3, where it rests while the scoopis getting its load, rest on the tripping studs or rollers y to hold the hooks open for permitting the studs 20 to enter notches 0 when the scoop comes up. When the truck begins to rise on rails e, the arms an escape from rollers y and the hooks drop under studs 10 and hold the scoop so that it cannot drop away from the truck while being raised and emptied, and the truck is returned again to the place of starting, when the scoop is again detached from the truck, this being efiected by the arms a: again running up on the stud-rollers y. The scoop then descends again, as represented in Fig. 3, the hoisting-rope being paid off from drum t as required for the purpose. The tripping-rollers glare mounted on the deck in fixed positions, and bumping-stops z are also fixed on the deck to stop the truck in its resting-place, the said tripping-rollers and bumping-stops being in the proper relation to each other for tripping the hooks when the truck reaches its stopping-place.

For tripping the bottom 2 of the scoop to discharge the load and for automatically shutting and latching it, said bottom being hinged at 3 and having slide-bolts 4 and catches 5 for securing it when closed, the slide-bolts 4: e

are jointed to lever 6, pivoted to the said bottom at 7, and jointedat 8 to one extremity of a yoke 9, fixed inslideways 10 and having coiled springs 11 adjusted for thrusting the bolts into the catches. The yoke 9 has a down wardly-turned flange 12 at its other extremity which is to be caught by a tooth of a dog 13 it can be shifted to bring another tooth intodog in the most effective position.

, fail of being so closed.

- "To facilitate the sinking of the scoop action when one has worn and become ineffe ct ive. The dog is rigidly attached to'a shaft 15, mounted innotched arms 16; projecting .from the bow, in which notches the shaft is sofittedthat it cannot rotate. notchesl? is provided to favor locating the When the scoop returns after discharging, thebottom 2,being forced back over the dog, swings up and automatically closes; but another device is also provided for closing it in case it'should It consists of-a slopjog-forward wall 18 of the opening through-- the-scow, along which the forward edge of the bottomof the scoop will drag when descending, and thus be closed.

readily, the scoop being closed when it strikes the water, one or more inwardly-opening valves 19wi-ll.be provided inthe side just above the bottom to open by the impact of-the Water when the scoop strikes and allow the scoop to fill, after'which and when the scoop takes its loadthewalve or Valves will be automatically closed thereby.

Anrope 2O is attached to the scoop at 21 to pull it back from the place of discharging.

. also-under weighted pulleys 37, and attached Itpasses under a guide-pulley 22, over an other23, and onto the drum 24, which is to be understood'as having power applied to it to runi-tin either direction for drawingup or' paying out the rope.

pose the stafi 24 of the scoop is coupled by a yoke 25 with a shaft 26, having a grooved roller 27 eachside of the middle, where the yoke. is connected and arranged on rails 28, 1 suspendedfrom the deck each side of a slot 29in the deck, through which the staff projects upwardly-when the scoop isdown, as in: Fig. 3. The ends of this shaft26 are respectively attachedto ropes 34, passing over pulleys 35 and-36, fixed in stationary positions;

to fixed studs 31, with the weights 32-suspended-in thebights ofthe ropes between points-31 and pulleys 35; so that when the hoisting-rope is let off for the descent of the bucket and rope-20 is under stress for pulling thescoop back the weights will thus tilt the point of the scoop downward? Whenthe scoopisloaded and being drawnupward, the

backward stresson the ropes 34 by the staif A series of back by rope 20, 7

24yvill overcome-the power of the weights 32, forcing shaft 26 back and raising the weights preparatory to the next operation.

The weights 32 are located so far distant from the" scoop each side that it works between them unobstructedly. g V V H l The stafi 24 is fitted to slide freely in the yoke, and they swing up through the slot 29 in the-deck, as represented in Fig. 1, when the scoop is elevated for discharging, and the staff controlled by the yoke keeps the scoop steady.v to

" The"rollers-= 27, taking effect on the under side "ofthe deck when the scoop is up, limit the upward movement of the stalf.

The scoop is provided with an earth-breakin g cutter attachment 33, located in thespoonpoint23.

What We claim as our inventionise- 1. The combination of the scow adapted for the passage of the scoop up and down at the forward part, the inclined rails reaching over the bow, truck, rails for lodgm ent of the truck at the lower extremities of the inclined rails, scoop, hoisting-rope suspending the scoop from the truck and traversing a guide-pulley on the truck and a pulley at the top of the inclined rails, drum for operating said rope, and means for automatically hooking up scoop to the truck andunhookingitr 1 2. The combination of thescow adapted for the passage of the scoop up anddown at the the 1 scoop, hoisting-rope suspending the-scoop from the truck an dtraversing-a guide pulley on the truck and a pulley at the topof the inclined rails, drum for operating said rope, means for automatically hooking up the scoop to the truck and unhooking it, controllingyoke for the scoop-staif, and means for automatically opening the-scoop-bottom.

the passage of the scoop up and downatthe the bow, rails for lodgment of the truck-at the lower extremities of the inclined rails,scoop, hoisting-rope suspending the scoop from the truck and traversing a guide-pulley on the rails, drum for operating-said rope, means'for automatically hooking up the scoop to l the gravitating'hooks pivoted to the truck, tripping-arms of the hooks and the trippingrollers.

3; The combination of the scow adapted for truck and unhooking it, consisting ofthe;

; 4. The combination of the scow adapted for forward part, the inclined rails reaching over truck and a pulley at the top of the inclined the passage of the scoop up and down at the forward part, the inclined rails reaching over the bow, truck-rails for lodgment of thetruck at the lower extremities of the inclined rails, I scoop, hoisti'ngrope suspending the scoop from the truck and traversing a guide-pulley on thetruck and a pulley at the top of the inclined rails, drum for operating said-rope,

ineansfor automatically hooking up-the scoop from the truck and traversing a guide-pulley on the truck, and a pulley at the top of the inclined rails, drum for operating said rope, means for automatically hooking up the scoop to the truck and unhooking it, means for antomatically opening and closing the scoop consisting of the bolt-releasing slide on the cover,

dog supported at the bow for catching and withdrawing said slide, the spring for shooting the latch-bolts, and the sloping wall of the scoop-passage.

6. The combination of the scow adapted for the passage of the scoop up and down at the forward part, the inclined rails reaching over the bow, rails for d gment of the truckat the lower extremities of the inclined rails, scoop, hoisting-rope suspending the scoop from the truck and traversing a guide-pulley on the truck and a pulley at the top of the inclined rails, drum for operating said rope, means for automatically hooking up the scoop to the truck and unhooking it,and the rope and dru m for retracting the scoop.

7. The combination of the scow adapted for the passage of the scoop up and down at the forward part, the inclined rails reaching over the bow, rails for lodgment of the truck at the lower extremities of the inclined rails, scoop, hoisting-rope suspending the scoop from the truck and traversing a guide-pulley on the truck and a pulley at the top of the inclined rails, drum for operating said rope, means for automatically hooking up the scoop to the truck and unhooking it, the rope and drum for retracting the scoop, and the weighted ropes coupled with the scoop-stafi to direct the scoop-point into the ground.

8. The combination of the scow adapted for forward part, the inclined rails reaching over the bow, rails for lodgment of the truck at the lower extremities of the inclined rails, scoop, hoisting-rope suspending the scoop from the truck and traversing a guide-pulley on the truck and a pulley at the top of the inclined rails, drum for operating said rope, means for automatically hooking up the scoop to the truck and unhooking it, the rope and drum for retracting the scoop, and means for directing the point of the scoop into the ground, consisting of the traversing shaft-rails therefor, yoke coupling the scoop-staff to said shaft, the weighted ropes coupled to the shaft, and guide-pulleys for said ropes arranged to swing the staff forward when the scoop is retracted and to control the staff when the scoop is raised.

Signed by us at New York, N. Y., this th day of November, 1899.

ANDREW N. REIMER. WILLIAM A. OLSEN. \Vitnesses:

A. P. THAYER, O. SEDGWICK.

50 the passage of the scoop up and down at the r, 

